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Cryptographic Support for Linux
Linux on zSeries running on standard z990, z900, and
z800 engines is capable of exploiting the hardware cryp-
tographic feature provided by the PCICA feature (PCI
Cryptographic Accelerator). This enables customers
implementing e-business applications on Linux on zSeries
to utilize this enhanced hardware security.
Linux Support
Environment
• z990, z900, z800 or S/390 single image
• zSeries or S/390 LPAR
• VM/ESA
®
or z/VM guest
Block devices
• VM minidisks
• ECKD
™
3380 or 3390 DASDs
• VM virtual disk in storage
Network devices
• Virtual CTC
• ESCON CTC
• OSA-Express (Gigabit Ethernet, 1000BASE-T Ethernet,
Fast Ethernet, Token-Ring) up to 24 features/48 ports on
z990
• HiperSockets (up to 4,096 TCP/IP stacks on up to 16
HiperSockets on z990)
• 3172
• IUCV
• Character devices
• 3215 console
• Integrated console
Additional information is available at
ibm.com
/linux/ and at
ibm.com
/zseries/linux/.
Maximum of 1024 CHPIDs; 3 I/O cages
(28 slots each) = 84 I/O slots.
Per System
Feature
Minimum Maximum Maximum Increments/ Purchase
Features I/O Slots Connections channels/
Increm.
used by ports per
Features Feature
ESCON, 0
1
69
2
1024 16
4
16 port channels
2
channels
3
channels
4
FICON 0
1
60
2, 5
120 2
1
Express
channels
2
channels
feature
STI-2
6
0 4 N/A 2 outputs
N/A
ICB-2 link 0
1
N/A 8 links
7
N/A
1 link
STI-3
6
0 8 N/A 2 outputs
N/A
ICB-3 link 0
1
N/A 16 links
7
N/A
1 link
ICB-4 link 0
1
N/A
8
16 links
7
N/A
1 link
ISC-3 0
1
12 48 links
7, 9
4 links
1 link
10
OSA- 0 24
5
48 2 ports
1 feature
Express ports
PCICA
0 6
5, 11, 12
12 accelerator 2 accelerator 1 feature
cards cards
PCIXCC
0
13
4
5, 11
4
1
1 feature
13
coprocessors coprocessor
1) A minimum of one I/O feature (ESCON, FICON Express) or one Coupling
Link (ICB, ISC-3) is required.
2) Maximum of 48 ESCON features/720 active channels on Model A08.
Maximum of 48 FICON features/96 channels on A08.
3) Each ESCON feature has 16 channels of which 15 channels may be acti-
vated. One channel is always reserved as a spare.
4) ESCON channels are purchased in increments of four and are activated
via Licensed Internal Code, Confi guration Control (LIC CC). Channels
are activated equally across all installed 16-port ESCON features for
high availability.
5) The maximum quantity of FICON Express, OSA-Express, PCICA, and
PCIXCC in combination cannot exceed 20 features per I/O cage and 60
features per server.
6) The STI distribution cards, which support ICB-2 and ICB-3, reside in the
I/O cage. Each STI distribution card occupies one I/O slot.
7) The maximum number of Coupling Links combined (ICs, ICB-2s, ICB-3s,
ICB-4s, and active ISC-3 links) cannot exceed 64 per server.
8) ICB-4s do not require connectivity to a card in the I/O cage. ICB-4s are
not included in the maximum feature count for I/O slots.
9) A maximum of 32 ISC-3s can be defi ned in Compatibility ode (operating
at 1 Gbps, instead of 2 Gbps).
10) It is recommended that an initial order for ISC-3 include two links. When
two links are purchased, two ISC-3 features are shipped and activated
links are balanced across ISC-3 features for high availability.
11) The total number of PCICAs and PCIXCCs cannot exceed eight fea-
tures per server.
12) The total number of PCICAs cannot exceed two features per I/O cage.
13) PCIXCC feature increments are 0, 2, 3, or 4.
zSeries 990 Family Confi guration Detail
